Heliatek has won the GreenTec Award in the Production category. The Dresden- and Ulm-based technology company won the award for its innovative, vacuum roll-to-roll production process used to manufacture HeliaFilm, an organic solar film applied mainly on building façades.   The award was received by Dr. Ralph Wichtendahl, VP operations of Heliatek, during the Hannover   The prize recognizes the technological success of Heliatek as a leader in vacuum roll-to-roll organic semiconductor producti...